Fluid treating apparatus



"J1me 1957 J. T. SEAWELL FLUID TREATING APPARATUS Filed Jan. 27, 1956 nvmvrm l'fleawe/Z 44.2 a? (21 ATTORNEYS.

re r t FLUID TREATING APPARATUS Joseph T. Seaweil, Bridgevilie, Pa., assignor to Cocker Machine and Foundry Company, Gastonia, N. C., a corporation of North Caroiina Application January 27, 1956, Serial No. 561,730

6 Claims. (Cl. 2828) This invention relates to fluid treating apparatus. More especially, it is concerned with means for applying fluids, for example, hot liquid sizing, to continuously running textile materials, such as warp yarns or woven fabric, in a slasher. In fluid treating apparatus of the kind referred to, the warp yarns or other extile materials are directed into a hot bath of the sizing in an open trough and, upon emersion from the bath, are passed between a pair of superposed quetsch rolls for removal from the yarn or materials of unabsorbed excess sizing or removal of sizing to a specific residual or solids content in the yarn or materials. The lower quetsch revolves partly submerged in the sizing and is therefore maintained at the temperature of the bath. However, the upper quetsch roll, generally being non-metallic, has poor heat conductivity and/or capacity, and derives its limited heat transfer only from contact with the yarn sheet or the fabric, or from the lower quetsch roll and contacts any one of the aforementioned only at the nip of the quetsch, such contact being generally from /2 to A in width. The upper quetsch roil, being in the clear, is cooled by the surrounding atmosphere and, as a consequence, the sizing tends to increase in viscosity and to subsequently harden or cake upon the surface of said roll. Accordingly, thorough penetration of the sizing through the material, evenness of the treatment of the latter is not assured.

The chief aim of my invention is to overcome the drawback just mentioned. This objective is realized in practice, as hereinafter more fully disclosed, through provision of a jacket to surround the upper quetsch roll, including means for constantly releasing a jet of steam in such a manner as to cause it to traverse a clearance interval between the jacket and the upper quetsch roll, whereby the latter is maintained at substantially the same temperature as the bath, without adverse drying effects, and whereby the sizing carried about on the surface of said roll is kept moist against the possibility of hardening or caking.

Other objects and attendant advantages will appear from the following detailed description of the attached drawings, wherein:

Fig. 1 is a fragmentary view, in longitudinal section, of a slasher with fluid applicator means conveniently embodying the jacket of my invention; and

Fig. 2 is a view looking as indicated by the angled arrows IIII in Fig. 1, with portions shown in elevation and with portions broken out and shown in section.

With more detailed reference to these illustrations, the numeral designates a receptacle (ordinarily known as a size box) containing a trough 11 for the treating liquid. By suitable means, not shown, the liquid in the trough 11 is maintained at the prescribed temperature necessary for homogeneity and fluidity. The textile material, herein represented as a sheet of running warp yarns, to be treated is drawn by a group of rolls 12, 13 and 14 from suitable supply source such as a creel through an expansion comb 15, and, enroute from said comb is directed over a guide t s atent O Patented June 18, 1957 roll 16 downward into the trough 11 to undertravel the submerged immersion roll 17. The immersion roll 17 is adjustable up and down by turning a shaft 18 having superposed pinions 19 thereon in mesh with rack bars 20 in the lower ends of which the shaft 21 of said roll is journalled. The pinion shaft 19 and the shafts of the rolls 13 and 16 are rotatively supported in fixed side frames 22. Upon emergence from the liquid after undertraveling the immersion roll 17, the warps W pass between a pair of superposed quetsch rolls 25 and 26 whereof the lower one run-s partly submerged in the sizing, and from said rolls the warps continue on to the usual drying drums of the slasher of which two are indicated at'28 and 29 in Fig. 1. The upper quetsch roll 25 is maintained in pressure engagement with its mate 26 by a pair of hydraulic cylinders 30 fixedly supported by cross members 31 atop spaced frame supports 32 at opposite sides of the slasher, the bearings 33 for shaft 34 of said roll being connected to the distal ends of the piston rods 35 of said cylinders. Pressure fluid is conducted to the cylinders 30 by way of piping 36. The shaft of the lower quetsch roll 26 is rotatively supported in the side walls of the trough 11, and is driven, through a sprocket chain 37, from a suitable power source, not shown. Rotary mo tion is transmitted to the upper quetsch roll 25 at the same peripheral speed but in the opposite direction through the intermeshing speed gears indicated at 38 and 39 in Fig. 2. In adapting my invention to a fluid applicator such as above briefly described, I have provided a jacket designated at 40 to extend over and to surround the greater part of the upper quetsch roll 25. As shown, the jacket 46 is transversely curved concentrically with the roll 25 and hollow, and extends downwardly of opposite ends of the roll 25 with intervention of narrow clearance space 41. As further shown, the jacket 40 is suspended by a pair of rods 42 which are adjustably axially in members 43 bridged across tie bars 44 that connect the columns 32 at the top, and which are fixable in adjusted position by set screws 45. By way of a flexible hose 46, steam is introduced into the jacket 40 at the center adjacent one of its longitudinal bottom edges, for discharge, through a longitudinal slit 47 in the inner wall of the jacket adjacent the other bottom edge of the latter, into the interspace 41. A bafile projection 48 at the slit 47 serves to direct the steam upwardly into the interspace 41 at the rising side of the roll 25 as indicated by the arrows in Fig. 1. Accordingly, it will be seen that the steam is caused to traverse the interval 41 in the direction in which the roll 25 rotates. In this way the roll 25 is not only effectively heated, but the sizing carried upon its surface as a result of its contact with the mating roll 26, is kept moist and so prevented from hardening or caking. Flow of the steam to the jacket 40 is regulatable by means of a hand valve 50 in the tube 46 wherein is also interposed a water separator 51; and condensation accumulation within the jacket is carried off from the bottom of the jacket through hose connections indicated at 52 in Fig. 1.

Having thus described my invention, I claim:

1. In apparatus for fluid treatment of continuously running textile material, a trough for the fluid; an immersion roll revolving in the fluid and undertraveled by the material; a pair of superposed quetsch rolls between which the material is passed upon emergence from the fluid; a jacket substantially surrounding the upper quetsch roll with provision of a narrow interspace between them, and embodying means for introducing steam into the inter space for flow in the latter about the surrounded surface of the upper quetsch roll.

2. The invention according to claim 1, wherein the jacket is extended downwardly of opposite ends of the upper quetsch roll.

3. The invention according to claim 1, wherein the jacket is hollow and conformative with the upper quetsch roll; wherein the steam is introduced into the jacket. adjacent one of its bottom longitudinal edges; and wherein the steam is discharged upwardly into the interspace'through a transverse slit in the inner wall of the jacket adjacent the other longitudinal bottom edge of the latter.

4. The invention according to claim 1, wherein the jacket is hollow and conformative with the upper quetsch roll; wherein the steam is introduced in the jacket adjacent one of its longitudinal bottom edges; and wherein the steam is discharged upwardly into the interspace through a transverse slit in the inner wall of the jacket adjacent the other longitudinal bottom edge of the latter in the direction of rotation of the upper quetsch roll.

5. The invention according to claim 1, wherein the jacket is hollow and conformative with the upper quetseh roll; wherein the steam is introduced into the jacket adjacent one of its longitudinal bottom edges; 'and wherein the steam is discharged upwardly into the interspace through a transverse slit in the inner wall of the jacket adjacent the other longitudinal bottom edge of the latter; and wherein the jacket is provided in its bottom edges with condensation outlets.

6. The invention according to claim 1, wherein the jacket is hollow and extends downwardly of opposite ends of the upper quetsch roll; wherein the steam is introduced into the jacket adjacent one of its bottom longitudinal edges; and wherein the steam is discharged upwardly into the interspace through a transverse slit in the inner wall of the jacket adjacent the other bottom longitudinal edge of the latter.

References Cited in the file of this patent UNITED STATES PATENTS 2,763,912 Griifin Sept. 25, 1956 

